SpaGuard Spa Shock-Oxidizer - 35 oz.

SpaGuard Spa Shock-Oxidizer is a fast-dissolving, non-chlorine shock that clears spa and hot tub water by destroying the organic waste your sanitizer leaves behind. Every soak adds body oils, lotions, sweat, and other contaminants to the water. Sanitizer controls bacteria, but it doesn't burn off that organic load — and when it builds up, the water turns cloudy, dull, and starts to smell. Shocking is how you oxidize that buildup away.

What sets this shock apart is what it doesn't do: it doesn't raise your chlorine residual. Built on a non-chlorine oxidizer (potassium peroxymonosulfate, or MPS), it clears the water without adding chlorine — so there's no chlorine spike to wait out and no sharp chlorine smell after dosing. It also buffers the water to prevent pH bounce, so a routine shock doesn't knock your balance out of range.

Regular use keeps water consistently clear and comfortable. It's a clean, simple way to oxidize between sanitizer doses, and it works with whatever system you run.